Electric-motor truck



(No Model.)

F. O. BLAOKWELL. ELECTRIC MOTOR TRUCK.

No. 449,197. Patented Mar. 31,1891.

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FRANCIS O. BLACKIVELL, OF N E\\' YORK, N. Y, ASSIGNOR TO THE THOMSON-HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.

ELEGTRIC MOTORTRUCK.

SPECIFICATION forming part of Letters Patent No. 449,197, dated March31, 1891.

Application filed August 31, 1889. Serial No. 322,635- (No model.)

To (all whom it nwty concern: cessible. In case, also, that the motor isBe it known that I, FRANCIS 0. BLACK- overhung, as shown in thedrawings, an ad- WELL, a citizen of the United States, resid ditionalweight will be imposed upon the 5 ing at New York, in the county of NewYork, driven axle, and a consequent increase in 5 State of New York,have invented certain tractive force will result.

new and useful Improvements in Electric \Vhat I claim as new, and desireto secure Motor Trucks, of which the following is a by Letters Patent,is specification. 1. The combination, with a driven axle, of 60 Myinvention relates to electricrailway a motor having a bearing thereon,and a sinto vehicles; and it consists in certain features of glesupplementary supporting-bearing on the construction ofthepropelling-motor and the opposite axle. method of attachment to thevehicle. 2. The combination, with a driven axle, of

Referring to the accompanying drawings, a motor jonrnaled thereon,having its field- 65 Figure 1 is a plan of a railway-truck embodymagnetand armature both parallel to the IS ing my invention. Fig. 2 is adetail, and Fig. axle, and a support for the free end of the 3 is amodification. motor attached directly to the opposite axle.

Referring to the drawings, A are two mag- The combination, with a drivenaxle, of

netic bobbins, having their axes parallel a motor having itsfield-magnet and its ar- 70 with the driven axle. B is an armature,havmature both parallel with the axle and proing its axis also parallelwith the axle and vided with bearing thereon and a journalinclosed bythe pole-pieces in the ordinary box on the opposite axle supporting thefree manner. The yoke of the magnet and the end of the motor.pole-pieces are provided with extensions 4. The combination, with adriven axle, of 75 having bearings upon the axle. These exa motor havingtwo bearings thereon and tensions carrya counter-shaft O, geared withgeared thereto, with a single bearing upon the armature and with theaxle. Counterthe opposite axle supporting the free end of balancing barsE extend to the opposite axle, the motor.

and are there provided with a bearing. 5. The combination, with a drivenaxle, of So (Shown in detail in Fig. 2.) a motor having its field-magnetparallel with o In Fig. 2, F is a casing forming a journalthe axle andgeared thereto, bearings for the box bolted to bar E. G is a brass orsimilar said motor upon the axle, and a support for bearing resting oncushion H, of rubber. its free end,provided with a spring or elasticThis gives a slight spring movement to the bearing resting directly uponthe opposite 85 motor at starting, and also relieves the axle.

structure of strain and wear. Instead of 6. The combination, with adriven axle of having each of the bars E provided with a a car-truck, ofan electric motor outside the bearing, I prefer to bring them together,as axle journaled thereon and a single suppleshown in Fig. 3, and theremake a common mentary supporting-bearing on the opposite 9o bearing forthe two. axle, as set forth.

In Fig. 3 the box F is extended and the 7. The combination, in anelectricunotor two bars E are attached to it by means of truck, of amotor having the axis of its fieldbolt K, having a large rubber washerK, almagnets and its armature parallel with the lowing it to yield inevery direction. axle and provided with extensions from its 5 By theconstruction which I have deyoke, and pole-pieces journalcd on the axle,

scribed the car-body will be entirely relieved with means for supportingthe motor in poof any strain from the working of the mosition,asdescribed. tor, the free end of the mot-or being upheld Thisspecification signed and witnessed by a bearing 011 the axle,independent of the this 20th day of August, 1889.

springs supporting the car-body. There will, FRANCIS O. BLACIUVELL. 5omoreover, be ample room vertically for plac- \Vitnesses:

ing a motor of this construction under a ve- GEORGE BAUMANN,

hicle, and its commutator will be readily ac- JOHN RuvuLL.

